Power supply anti-surge consumption reduction circuit and computer power supply module

Abstract

The utility model relates to the technical field of computer power supplies, in particular to a power supply anti-surge consumption reduction circuit and a computer power supply module, which comprise an input end module, an output end module, an NTC (Negative Temperature Coefficient) thermistor and an intelligent detection control unit, the NTC thermistor is connected in parallel with a bypass module, and the intelligent detection control unit is used for controlling the on and off of the bypass module. The circuit is ingenious in design, controls the relay through the intelligent detection control unit to assist the NTC thermistor in reducing loss, improves the utilization efficiency of a power supply, guarantees the function of suppressing surge current, and is reliable in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of computer power supplies, in particular to a power supply surge protection and power consumption reduction circuit and a computer power supply module. Background Art

[0002] As the most widely used energy product, the design and manufacture of the microcomputer power supply aims to improve the power utilization efficiency in all aspects to achieve energy conservation and emission reduction. When the power supply is first turned on, the circuit may experience a relatively high transient current, namely the so-called "surge current". Such current peaks may cause the overload protection circuit to malfunction, or in extreme cases, damage the power supply and other related components. Therefore, suppressing the surge current is an important factor to be considered in the design of the power supply system. In the design of the power supply surge part, most use the method of directly connecting an NTC in series to suppress the surge current; however, the NTC thermistor will have a large power loss, and the greater the output power, the higher the loss, which has a certain impact on energy conservation and high efficiency. Summary of the Invention

[0003] Aiming at the problems of the prior art, the utility model provides a power supply surge protection and power consumption reduction circuit and a computer power supply module, which are ingeniously designed. The intelligent detection and control unit controls the relay to assist the NTC thermistor to reduce the loss, improve the power utilization efficiency, and ensure the function of suppressing the surge current, and the structure is reliable.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model provides a power supply surge protection and power consumption reduction circuit, which includes an input end module, an output end module, an NTC thermistor, and an intelligent detection and control unit. The NTC thermistor is connected between the input end module and the output end module, and a bypass module is connected in parallel with the NTC thermistor. The intelligent detection and control unit is used to control the opening and closing of the bypass module.

[0006] Wherein, the intelligent detection and control unit includes a relay and a VCC power supply terminal, the bypass module includes a switch, the relay is used to control the opening and closing of the switch, and the output end of the VCC power supply terminal is connected to the input end of the relay.

[0007] Among them, the intelligent detection and control unit further includes a voltage stabilizing diode ZD402, a diode D401, a triode Q401, a resistor R401, a resistor R402, and a capacitor C401. The VCC power connection terminal is respectively connected to the cathode of the voltage stabilizing diode ZD402, the cathode of the diode D401, and one end of the relay. The other end of the relay and the anode of the diode D401 are connected to the collector of the triode Q401. The base of the triode Q401 is connected to one end of the resistor R402, one end of the resistor R401, and one end of the capacitor C401. The other end of the resistor R401 is connected to the anode of the voltage stabilizing diode ZD402. The other end of the capacitor C401, the other end of the resistor R402, and the emitter of the triode Q401 are respectively grounded.

[0008] The present invention also provides a computer power supply module, which includes a power supply body and a control circuit board arranged in the power supply body, and the control circuit board is provided with the power supply anti-surge power consumption reduction circuit described above.

[0009] Advantages of the present invention:

[0010] When the present invention works, when the VCC power connection terminal is powered on, the normally open contact of the relay controlled by VCC drives the switch to close, so that the NTC thermistor is short-circuited, that is, the bypass module is turned on, so that the current of the NTC thermistor is bypassed, and the NTC thermistor no longer generates power loss, achieving the purpose of energy saving. At the same time, it can also ensure the use safety of the NTC thermistor; when the power supply is turned off, the VCC power connection terminal is powered off, the normally open contact of the relay is disconnected, so that the switch is disconnected, and the NTC thermistor can resume its function of suppressing inrush current when the next startup occurs. The present invention is ingeniously designed. The intelligent detection and control unit controls the relay to assist the NTC thermistor to reduce losses, improve the power utilization efficiency of the power supply, and ensure the function of suppressing inrush current, and the structure is reliable. Description of the drawings

[0011] Figure 1 is a principle block diagram of a power supply anti-surge power consumption reduction circuit of the present invention.

[0012] Figure 2 is a circuit schematic diagram of a power supply anti-surge power consumption reduction circuit of the present invention.

[0013] In Figures 1 to 2 the reference numerals include:

[0014] 100, intelligent detection and control unit; 200, bypass module; 300, relay; 400, switch. Specific embodiments

[0015] For the convenience of those skilled in the art, the present utility model will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the embodiments does not limit the present utility model. The present utility model will be described in detail below with reference to the accompanying drawings.

[0016] Embodiment 1

[0017] A power supply anti-surge power consumption reduction circuit, as Figures 1 to 2 shown, which includes an input terminal module, an output terminal module, an NTC thermistor, and an intelligent detection and control unit 100. The NTC thermistor is connected between the input terminal module and the output terminal module. A bypass module 200 is connected in parallel with the NTC thermistor. The intelligent detection and control unit 100 is used to control the opening and closing of the bypass module 200. Further, the intelligent detection and control unit 100 includes a relay 300 and a VCC power supply terminal. The bypass module 200 includes a switch 400. The relay 300 is used to control the opening and closing of the switch 400. The output terminal of the VCC power supply terminal is connected to the input terminal of the relay 300. Specifically, when the present utility model works, when the VCC power supply terminal is powered on, VCC controls the normally open contact of the relay 300 to drive the switch 400 to close, so that the NTC thermistor is short-circuited, that is, the bypass module 200 is turned on, so that the current of the NTC thermistor is bypassed, and the NTC thermistor no longer generates power loss, achieving the purpose of energy saving, and at the same time ensuring the use safety of the NTC thermistor; when the power supply is turned off, the VCC power supply terminal is powered off, the normally open contact of the relay 300 is disconnected, so that the switch 400 is disconnected, and the NTC thermistor can resume its function of suppressing inrush current when the next startup (power-on) occurs. The design of the present utility model is ingenious. The intelligent detection and control unit 100 controls the relay 300 to assist the NTC thermistor to reduce losses, improve the power utilization efficiency of the power supply, and ensure the function of suppressing inrush current, and the structure is reliable.

[0018] In the embodiment of the present application, the intelligent detection and control unit 100 further includes a zener diode ZD402, a diode D401, a triode Q401, a resistor R401, a resistor R402, and a capacitor C401. The VCC power supply terminal is respectively connected to the cathode of the zener diode ZD402, the cathode of the diode D401, and one end of the relay 300. The other end of the relay 300 and the anode of the diode D401 are connected to the collector of the triode Q401. The base of the triode Q401 is connected to one end of the resistor R402, one end of the resistor R401, and one end of the capacitor C401. The other end of the resistor R401 is connected to the anode of the zener diode ZD402. The other end of the capacitor C401, the other end of the resistor R402, and the emitter of the triode Q401 are respectively grounded.

[0019] Embodiment 2

[0020] Embodiment 2 of the present application further provides a computer power module, which includes a power supply body and a control circuit board disposed within the power supply body, and the control circuit board is provided with the power supply surge protection and power consumption reduction circuit described above.

[0021] The above are only preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention is disclosed above in preferred embodiments, it is not intended to limit the present invention. Any person skilled in the relevant art can, without departing from the technical solution of the present invention, make some changes or modifications to the above-disclosed technical content to obtain equivalent embodiments with equivalent changes. However, as long as the technical solution content of the present invention is not departed from, any simple modification, equivalent change, and modification made to the above embodiments according to the technical concept of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. A power supply surge protection and power consumption reduction circuit, characterized in that: It includes an input end module, an output end module, an NTC thermistor and an intelligent detection control unit. The NTC thermistor is connected between the input end module and the output end module. The NTC thermistor is connected in parallel with a bypass module. The intelligent detection control unit is used to control the opening and closing of the bypass module.

2. A power surge protection and power consumption reduction circuit according to claim 1, characterized in that: The intelligent detection control unit includes a relay and a VCC power terminal, the bypass module includes a switch, the relay is used to control the opening and closing of the switch, and the output end of the VCC power terminal is connected to the input end of the relay.

3. A power surge protection and power consumption reduction circuit according to claim 2, characterized in that: The intelligent detection control unit also includes a voltage-stabilizing diode ZD402, a diode D401, a transistor Q401, a resistor R401, a resistor R402 and a capacitor C401. The VCC power terminal is respectively connected to the cathode of the voltage-stabilizing diode ZD402, the cathode of the diode D401 and one end of the relay, the other end of the relay and the anode of the diode D401 are connected to the collector of the transistor Q401, the base of the transistor Q401 is connected to one end of the resistor R402, one end of the resistor R401 and one end of the capacitor C401, the other end of the resistor R401 is connected to the anode of the voltage-stabilizing diode ZD402, and the other end of the capacitor C401, the other end of the resistor R402 and the emitter of the transistor Q401 are respectively grounded.

4. A computer power supply module, characterized in that: It comprises a power supply body and a control circuit board arranged in the power supply body, and the control circuit board is provided with the power supply surge protection and power consumption reduction circuit according to any one of claims 1-3.

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